Hi, please can anyone help me
I have ipod touch and I want to restore it with itunes
but itunes give me this message "the ipod could not be restored . an unknown error occurred (14) "
current version running on my ipod is 3.1.3 and I am trying to restore it with 4.0.1 or 3.1.3 but itunes give me error message
Please urgent , help me

Error 13 and 14: These errors are typically resolved by performing one of more of the steps listed below:

1. Perform USB isolation troubleshooting, including a different USB port directly on the computer.
2. Put a USB 2.0 hub between the device and the computer.
3. Try a different USB 30-pin dock connector cable.
4. Eliminate third-party security software conflicts.
5. There may be third-party software installed that modifies your default packet size in Windows by inserting one or more TcpWindowSize entries into your Registry. If your default packet size is set incorrectly it can cause this error. Contact the manufacturer of the software that installed the packet size modification for assistance.
6. Connect your computer directly to your Internet source, bypassing any routers, hubs, or switches. You may need to restart your computer and modem to get online.
7. Try to restore from another known-good computer and network.

If you find an ASR error 1000 in the iPhone, iPad, or iPod updater log file, that is an error decompressing and transferring the IPSW file that is downloaded during the restore. This error is frequently caused by third-party security software interference, a poor quality Internet connection resulting in a bad IPSW download, or a conflict on the USB bus.